In an arithmetic sequence a1,a2,a3,...,We know a1=1 and an=1/n for some integer n>1
(a)What is the common difference of this arithmetic sequence, in terms of n?
(b) compute the value of an+1
(a) The common difference is 1/n.
(b) a_{n + 1} = (n + 1)/n.
+108 
